Road-map.



V. VALLET.

ROAD MAP.

APPLICATION FILED JUNE 22, 1911.

Patented Jul 23, 1912 2 SHEETS-SHEET'I V. VALLET ROAD MAP. APPLICATION FILED JUNEZZ. 9 11.

1,033,292., Patented July .23, 1912.

-2 SHEETS-SHEET 2.

Fl G. 2-

FIG 6'. A

unrrian STATES PA ruNT oFFIoE.

VICTOR VALLET, OF PARIS, FRANCE.

ROAD-MAP.

To all whom it may concern:

Be it known that I, VICTOR VALLET, citizen of France, residing at 25 Avenue Grambetta, Paris, in the Republic of France, have .invented new and usefulImprovements in Road-Maps, of which the following is a -specification. v

This invention relates to road maps and has for object an improved road map in which the varying level of the roads can be taken in at a sin e glance so that a traveler a can immediately 1 ecome acquainted with the nature of the re than one route between two points 1n his journey, can. select the one best suited to hisbetween the points selected is indicated by figures on the profile base. Maps have also 'been proposed in which the longitudinal vertical section o 3 theroad is shown on the side of the roach, but in such maps, the line of varying thickness which indicates the level of the roaddoes not follow the cartographically accurate line showing the curves of-the road, so that the selection between two routes is difficult as it is impossible to at once form a comprehensive conception of the routes and their natural incidents.

.The invention consists in an improved road map in which the vertical section of a road is shown folded down into the plane of the map throughout the length of the road and along the cartographi'cally accurate line showing the curves of the road, the lines representing the road being broken or continuous and one of them serving as the base of the vertical section whichis-repre sented by any graphical means, whereby the road is g'iven the appearance of being in relief. g v

In the accompanying drawings which are. given by way of example: Figure 1 shows part of a road map according to the inven tion in which the reliefof the roads is shown folded down into the plane of the map the road itself being represented by aline parallel to the profile edge. Figs. '2-7 illustrate various graphical means of representation.

Specification of Letters Patent.

Application filed June 22, 1911.

. and when there are more.

'erses and consequently, as he is able to see tions.

of Fig. 5 the relief is shown by means of a v and for the purpose set forth.

Patented J uly 23, 1912. Serial No. 634,818.

Referring toFig. 1 it is seen that each road is shown with its relief folded down into the plane of the map so that each road is shown in the form "of a band or chain having dive'rgencies, convergencies and portions of constant breadth. For example, if it is desired to go from Amiens to Mont-- didier on the map shown in Fig. 1 itis seen that ofthe two principal roads which may be taken the one passing through Ailly has a number of considerable hills while the other'pass'ing through Moreuil is almost uni formly fiat. This enables a choice to be made at once with full reason for each choice. Further, in the course of. his jourhey a motorist for example can observe .his position by comparing the indications of the map with the gradients which he travat every instant the gradients which he is gomg to arrive at, he can regulate the running OflllS car in the best possible condi- In the method of graphic representation so shown in Fig. 4 a graduated lighting of one face is assumed, the light coming from the left, 21c. from the west.

In the method of graphic representation continuous hatched margin.

In the representation of Fig. 6 the relief is denoted by means of a conventional design according to which the road forms achain of prismatic sectionsa Finally in the method of representationof Fig. 7 the relief is denoted by another conventional device, the road in this case having the appearance of a continuous via-' duct in which the arches are of different heights. g

It is obvious that the'map will still retain its characteristic advantages if certain roads of secondary importance are represented in the usual manner. I I

Having now described my invention, what I claim as new and desire to secure by Letters Patent is: l

- 1. An improved road map in which the. vertical section of a road is shown folded down into the plane of-the map throughout the length of the road and along the cartographically accurate line showing the curves ofthe road, substantially as described 2. An improved road map in which the verticalsectionof a road is shown folded down into the plane of the map throughout In testimony whereof I have signed my the length of the road and along the carto-i name to this specification in the presence of 10 graphically accurate line showing the two subscribing witnesses.

curves of the road, one of the lines reprel s x H senting the road serving as the base of the VHJ'OL VALLEL ertical section which is represented by any i Witnesses: graphical means, substantially as described Lens Moses, and for the purpose set forth. DEAN B. Misex. 

